Spinning frame



S. F. ROCKWELL ET AL July 5, 1932.

SPINNING FRAME 2 Sheets-Sheet l Filed Aug. ll. 1930 nvenTors. Samuel F.RocKweH Henry A. Owen @www July 5, 1932- s. F. RocKwl-:LL ET AL1,866,058V

' SPINNING FRAME Filed Aug. 11, 1930 2 Sheets-Sheet 2 byMMaf n M'fys.

Patented July 5, 1932 UN1TED s-TATESPATENT oi-ricia SAMUEL IF.RO('.KWIIIILLY OF NORTH.' ANDOVER. ANDHENRY A. OWEN, OF FOXIBOBl fMASSACHUSETTS, ASSIGNORS To DAVIS @QFURBER MACHINE COMPANY, or NORTH f iANDOVER, MASSACHUSETTS, A CORPORATION `0F'MASSACHUSETTS SPINNING, FRAMEj Application med Af1griisrt.11,i.naso.istria;y No. 474.361..

This invention relates to Spinning frames, and particularly to meansemployed therein to prolong the period of usefulness of certain partswhich become worn by reason of their ycontact with the running roving.`l

The invention is particularly adapted to that type ofspinning frame inwhicha twister tube is .employed to induce a temporary reinforcing twistduring the drawing operation. In such kmachines a guiding device,usually a rod of steel, yis employed to direct the roving into thetubesatl the requiredangle. The constant passage of roving over the guidingdevice rapidly wears a groove therein. The groove thus formed tendstoprevent the free passage of yarn over the'rod, and also sub/jects theroving to frequent breakage. Furthermore,the vgroovesin the rod tend toweaken itsiniti'al resistance to the tension of thel roving to Such anextent that, in many cases, the only remedy is to renew the rod.

Itis the generahobject of this invention to distribute the wear oftheroving upon the rod over asubstantial portion ofitsarea, thus preventingthe' formation of "grooves and thereby prolonging the period ofusefulness of the guiding means. i f

A further .object of the invention is to -provide asimplefand effectivemeansto prevent undesirable wear upon the roving guide and l permit theuse of ordinary material, such as mild steel, in itslconstruction. i Y

AV furtherlobj ect of the invention is to utilize the twister` tubeitself as a guideeyeto traverse thel roving along the guide rod.

A further object of the invention is to provide a spinning frame'inwhich' the twister tubes alone are traversed, and in which the upperguiderod, actingto direct the roving into thetwister tubes, is fixed totheframe of the'machine. l Y A further object of the invention is toVprovide aspinning frame in' which the upper guide rod may-be adjustedvertically;A

' These and other objects Vand features willV more fully' appear'fromthe following [description in connection with the accomp'any- Y p Yever,'is herein illustrated which .is similar. to v :the,twiste`,r tubepresented by the UJSI Patent 'granted -to "Henry Owen, a Patent No.

outin the claimsfjq* n In the rdrawings;'Figure ljisMa-'croSs-secingdrawingsand will be particularlypoi'nted tional View; through 'a portionof aspinning v frame embodying theV invention. c,

Fig. 2 illustrates a portion Iofthe spinning 'iframe showing in ,planthe parts illustrated` 1n Flgjl. A v n Flglis a plan view illustratingthel mechanismffor traversing the twister tubes.

In its broadestkaspect this'invention con-.-

templates a 'means for causing the roving, as

it passes over the upper guide rod, 'constantly to-change itspointofcontact therewith. The twister tubes in the type ofspinningvframe illustratedv are vtraversed and ythey may conveniently beutilized to produce 'the desired relativem'ovement of the roving alongthe guide rod. Y

In the specicfembodiinent illustrated, the desiredy result Aisaccomplished by mountingY the guide rod. in a fixedp'osition near-theVentering. end of the twister-tubes.' /As the tubes moves, therefore,the roving which'is" threaded therethrough is traversedV along the,gudeirod. l, Y

Sfncethe general details'of constructionof `a spinning frame' are wellknown to those Vskilled 1n ythey art it is-deemed necessary toillustrate only those portions vof a'frame which contain the'elementspofthe invention and those which aredirectlyrelated thereto.

The roving "1, issuing from a "suitable sourceof supply,v passesbetweena pair of driven feed rolls 2`and 3; From the feed rolls '5 rand6, 'from which point it is ledy'tov` a spinningmechanismjof any desiredconfeed? rolls to produce thedesired draft.Y The Vroll 6 is rotatablysupported Yin a bracket 8 which in turn is pivoted upon'thejbracket `7.

The bracketrS is swung about` its .pivot top maintain the roll. 6yielding. engagement with the roll-5 by means of the weight 9.

1 The twisterftube*"4L maybe of anyfdesired passesv into and :throughVa' twister 'tube 4; 'and' thence between a pair of drawing rollsconstruction. yApreferred construction-5how-l Y 1,770,085, in which theroving 1 is threaded through a central aperture 1() and emerges from thebottom thereof to be engaged by the jaws of a twisting head 11 mountedonk the lower end of the tube. From this point the roving leads directlyinto the bite of ,theV

drawing rolls 5 and 6. p

The twister tube 4 is rotatably mounted in .a bracket 12 which issecuredto a movable support 13. The support 1.3 is slidablelongitudinally of the machine in aligned guides ways in the brackets 7The brackets 7 are rigidlyfixed'to a supporting channel 14 extendingthroughout the length of the machine. In order to direct the roving intovthe upper end of the twister ,tubey .at the required angle, a guiderod'15 is provided over which the roving passes `on its way tothe Yaperture 10 in the twister tube. The rod 15 v reduced ends of the arms18 project intera vertical slot .20 inthe'b'rackets 16.V The eX- tremeinner ends of the arms 18 are threaded to receive nuts 21 by means ofwhich the shoulders 19 of the arms 18 are drawn against the outer faces22 of the brackets 16, thus `clampingthe arms rigidly in position.

V'The roving passesover only a portion of the periphery of the guide rod15. When screwsdriver may be inserted through aper-` this portionbecomesworn it is desirable that the rod be turned about its axis topresent another portion of its area. To provide for this .adjustment therod may be, therefore, loosely littedin its supporting arms 18 andnormally secured against rotation bymeans Vof one or more set screws26..

Y Screws 23 are mountedvertically in slots and have screw-threadedengagement with the inner ends of the arms 18. .The heads of the screws23 bear against the upper walls of the slots 20, whilev the lower endsof the screws bear against the bottom walls iof the yslots 20; `Theheads of the screws are pro- 'vidediwith screw-driver slots 24 into,which a tures 25 which. are somewhat smaller than VVVand-locateddirectly abovethe heads of the apertures 25. Since the screws havethreaded engagement with the arms'1-8- and are themselves connedagainstvertical movement, the`ar'ms 18, after'being releasedb'y loosening the rnuts 2l, are caused to .move

heSl 20.l wWhenr-the correct ustneously by a suitable traversingmechanism,

which is connected to the support 13. As

Ythet'ubes are traversed, the contact point of the roving upon the guiderod is constantly changing throughout the length of the traversingmovement. The wear upon the rod is thus distributed over a substantialportion .of its area. l i

y In conformity to the usual'practice in machines of the type hereinpresented two rows of Vtwister tubes are provided. There areconsequently'v two tube supports 13 which must be reciprocated toproduce the desired traverse.V Upon theends of the tube supports 13 aresecured especially constructed connector blocks 27 by means of which themovement ofthe outer ends of the levers 28 and 29 is transmitted to thesupports 13. The levers 28 and 29- are fulcrumed upon the frame of themachine at 30andv31 respectively.VIA The inner ends of the levers areprovided with followers 32 and 33 which are receivedin a cam slot 34 inthe cam disk 35. Thev cam disk 35 is preferably driven Vfrom somerotating. element of the machine. As Y shown herein the disk isprovidedwith teeth on its circumferenceY which are engaged by a worm 36 mountedon a shaft 37 which `is rotatably 'mounted in the frame of the machine.TheA shaft37 has mounted thereon a worm gear 38 which is driven by aworm 39 on the drawing roll 5. The contour of the cam slot, therefore,determines the extent of traverse ofthe twister tubes while power totraverse-the tubes is obtained from the drawing rolls, Y

When a coarseyarn is being spun or a silk .yarn in a machine notembodying the invention, a groove is rapidly worn in the roving guide.The present invention entirely eliminates the formation of such grooves,and enables a guide rod to be maintained in service supporting arms,aguide rod rotatablyA sup-` ported therein extending longitudinally ofthe vmachinefover which the roving passes for a. 'periodof time greatlyin excess of those acting to direct the roving to the twister tubes,means operable to secure the guide rod against rotation and meansactingv to move said twister tubes relatively to the guide rod wherebythe point of contact of the roving with the guide rodis constantlychanged and the guide rod may be rotatably adjusted to present a newwear surface.

2. In a spinning frame, feed rolls, drawin rolls co-operating therewithto produce dra t in the roving, a plurality of twister tubes throughwhich the roving is threaded acting to produce false twist therein, aplurality of verticaladjustable supporting arms normal- 1f ly fixed inposition, a guide rod rotatably sup ported in said arms actingto directthe roving to the twister tubes, a plurality of set screws havingscrew-threaded engagement with said arms operable to secure the rod 2Uagainst rotation and automatic means acting to reciprocate said twistertubes longitudinally of the guide rod whereby the point of contact ofthe roving with the guide is constantly changed throughout apredetermined Y 2f portion ofthe length thereof and the guide Yrod maybe rotatably adjusted to present a new wear surface.

In testimony whereof, we have signed our names to this speciication.SAMUEL F. ROCKVVELL.

HENRY A. OWEN.

